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Inheritance of resistance to zucchini yellow mosaic virus and watermelon mosaic virus in watermelon

文献类型： 外文期刊

作者： Xu, Y 1 ; Kang, D 2 ; Shi, Z 2 ; Shen, H 2 ; Wehner, T 2 ;

作者机构： 1.N Carolina State Univ, Dept Hort Sci, Raleigh, NC 27695 USA

2.N Carolina State Univ, Dept Hort Sci, Raleigh, NC 27695 USA; China Agr Univ, Dept Hort, Beijing 100094, Peoples R China; Natl Engn Res Ctr Vegetables, Beijing 100089, Peoples R China

期刊名称：JOURNAL OF HEREDITY （ 影响因子：2.645； 五年影响因子：3.069 ）

ISSN： 0022-1503

年卷期： 2004 年 95 卷 6 期

页码：

收录情况： SCI

摘要： High resistance to zucchini yellow mosaic virus-China strain (ZYMV-CH) and moderate resistance to watermelon mosaic virus (WMV) were found in a selection of PI 595203 (Citrullus lanatus var. lanatus), an Egusi type originally collected in Nigeria. Mixed inoculations showed primarily that these two viruses have no cross-protection. This fact may explain the high frequency of mixed infection often observed in commercial fields. When plants were inoculated with a mixture of the two viruses, the frequency of plants resistant to ZYMV was lower than expected, indicating that WMV infection may reduce the ability of a plant to resist ZYMV. We studied inheritance of resistance to ZYMV-CH and WMV, using crosses between a single-plant selection of PI 595203 and the ZYMV-susceptible watermelon inbreds 9811 and 98R. According to virus ratings of the susceptible parents, the resistant parent, and the F-1, F-2, and BC1 generations, resistance to ZYMV-CH was conferred by a single recessive gene, for which the symbol zym-CH is suggested. The high tolerance to WMV was controlled by at least two recessive genes.

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